Combing machine



Sept. 4, 1923. J. W.NASM1TH COMBING MACHINE I Filed March 30 Patented Sept; 4, 1923.

' JOHNT'V'IWILLIAEM nesiarrmcrianiicnnsrnnfnnernnn,

coMBme MACHINE. z

j Application fi1et1 IvIarch 8O,1S22.- seria n'd; 5 48 20951 To all whomjt may conccm Be it known that I, Joriulvinmatr NA sMI'rina subject of the King'of Great Brit f ain,-. res ding at Manohestenflin the county caused toturn and feed thenecessary amount 7 of material forward Teach stroke during the detaching period. Duringthe detaching op; eration a considerable amount of long fibre,

which is not carried forward by the detach? ing rollers, is, drawn outof the nippers and crumpled up behind the top comband not being heldby thenipper when it closes, is carried away as waste:- ,j; o; I I

The firstbbject ofthe presentinvention is to save this unnecessary waste by causing the feed apparatus to draw back a short length of the previously fed material within the nipper asit commences. to recede from the detaching roller and .beforefit closesyand ing a secondary orffeed nipper' in place'o'l' t e usual roller although a roller may; be

caused to givethe desired result.

Usually the feed" organ hasrto be adjust;

ed separately in .eachghead of themachine to suitthe material being'combed and the amount ofwaste requiredlto be taken out..

The lip of the nipper when in, its most for} ward position is set nearest the detaching rollerifor short material and low waste farther away for long fibres and greater", And as it carries the feed organ waste. with it the distance between the-latterand the detaching roller is correspondingly altered when anyalterationfis made in the position of thenipperi; But-it is desirable that in addition to this the position of the feed organiwithin the-nipper should also be changed. The farther the nipper it set back from the detaching roller the farther the feed organ should be setback from the lip of the nipper and vice versa, thus the feed. organ should bis-displaced notonly the amount the nipperis moved but a further amount in the same-direction. o I

A second object ofithe "present invention is therefore to so arrange matters that as Figure thismay be :Vconv'eniently done, by employ f detaching roller, the vfeed organ; carried by the nippersh'a'll be simultaneously and auto-r matically withdrawn farther frOnithe-liP i of the nigp erl so that itsfdistancefrom the detaching rollers .is not only increased by r the distance the nipper has been set backbut by an additional amount;

q The manner in @which these two objects o the nipper withdrawnfartherifroinythe are achieved willinowbeideseribed detail :f

with reference to.-zthe;drawings in 1 which '7; n Fig. ljrepresents a section through one nead of the n pper of a. Nasm th combing mach ne showing the feed nipper when thej main nipper .is' in its position at the rear- T nost end .ol its stroke the jupper jawof the-K main nipper being omitted;

elfigz. 2 shows the same 'wh en t he inain snip? hero is in its most forward ,positionand with the addition of the for operating {the 'feed nipper -w.

-11 l; ig. 3' shows a jfeed rol;ler; and means "01" operatingit as required by invention.

I I V is'a view showing the main nip-f i per just about to close when t has recededp,

some distance from the detaehingroller and; V

the Eeed nipper; 9 within the flihain nip r,

j ust asit 'beg'instolopenafter having drawn the material away from behind thetop eonib e s 'in ijth ma -flipp e pr r; 1? i aw of the latter ndthe; top co nbf being represented; 7 "Referring firstt'o Eig. 2,i the combing cylinder isrepresentedjby 1, the detaching-roller y D a the nipper shaft by "l id v unnecessaryfcomplication ofthe d-rawin'g the l connec tion-betweenthisshaft and thenipper islnot shown but may beseenin the drawing appendedto my UnitedStates Patent-No.-

1,369,532; Therockingyofthis shaft swings the nipper cheeksl l (one at either endof the nipper)i theginipper bridge B and: the

lower-jawP uninterruptedly to and frotbe tween the position: shown in' Fig. '1' to that shown 'in Fig. 2 that is between the dotted radii Of and C alon or 'thedotted arc ZCF.

Fixed in thesiiiPPGI" cheeks: l ?,are studs; 16-

upon which pivot freely bell crank levers;, I 1,.f To the extremity "of the long" arm of the le-" its].

vers'L are} freel-yopivoted at 33 "links :34 a

whose upper endsl are adjustably'securedto blocks 36 swivelling. in. projections ll cast on the levers 9 keyed ontheshaft ;-1l0.".-vPivoted at 32 to the'shortarm of the levers L arearms 3l' carryihgthe lower jaw-of the feed nipper F. 'Eacharm 31 carries a bowl 30 running onledges 35 formed on the nipper cheeks N for the purpose of keeping the jaw F clear of the nipperplate P is the nipper swings to and fro it carries with it the studs 16 on which the levers'L are freely pivotedfbut the pins 83 cannot partake of this motion owing tothe links 34:, attached to. the fixed swivels 36 and thellevers L thereforeturn on the'studs' 16 causing the arms 31 and the lower F ito nove to and fro within the main nippe'r running on the bowl 80. The arms 87, carrying the upper jaw F ofthefeednipperalso' move to and .fro with the arms 31 beingpivo'ted thereon at 382 Pivotedto -arms 37 at the point 39 is p the link 40 having-lined inits upper end a screwedfstud G c-arryingloose"upon it the open spring 44 and passing freely through the blockdl whichiswivels freely in the end v of the lever keyedomthe shaft T The cain M (shown dotted in Fig. 2

V the other endto astud 51 fixed tothe framing of the machine and the spring being always in tension the bowl 49 is constantly kept in contact with the contour'of the cam M which'in rotating suitably rocks the shaft T3 to open and close' the jaws F, :F of the feednipper at the appropriate time and nipping the -material-with a spring pressure through the spring' The shape of the cam M incoinhination with the nuts 43 reg ulates the time when the feed nipper' opens and closes andconsequently the'amount of feed and the-ca1n is-socshaped that it c'loses the feednipperijawl i when it has advanced a a" certain; distance from the position shown in 1 towards that shown in'FigQ 2 and keeps it closed until the main nipper', whose lower jaw is 'designated'P hasreceded some distance fromthedetaching 'rolle rfon the return stroke and'as during this'time the feed-nipper hasjals'o executed a smallpart of its retrograde movement within the main nipper, still gripping the material it withdraws part of the previously fed material back again within theinain, nipper;

F-igl 4 shows the various organs approximately-in their relative positionsjust as the feed nipper F"-is' opening after it has taken back withit, in itsretrograde movementin relation to the-lower nipperjaw- P a certain length ofthelap (shownat' 52), which it'has'drawn'hack away from behindthe top comb T as shown at At this point the top nipperjaw P is taboutto close on the lower jaw P which has travelled some distance towards the position shown in Figr Zand grip the lap 53to hold it whilst the" cylinder. needles. comb. theyprojecting tuft.

'At the-same time thie fe ednipper jaws F,

F open and they continue'their retrograde movement in relation to the nipper jaw P and move further up the lap, now held by the jaws P P readyto take a fresh grip.

on the next forward stroke} "To allow for this the feed nipper is caused to close suf-' ficiently early on the forwardfstro-ke to feed as much material as1srequ1redeach stroke plus the amount that-isagain to he with draw-n within the main 7 nipper' on its return stroke before it closes to-hol'dthe material during 'cembingby the cylinder? 2 'When'therequisite amount has been drawn back into the main' nipper the feednipperis opened-hy the cam- M andm'oves back up the lap of material ready-to take a" fresh grip farther up on the neXt merit as seen iii-Fig.1; it I forward'moveper end ofthe-link 3 l the position-of the to and fro movement of the feecl nipper in'relation tothelip of the mainnipper jaw P? can be regulated; that 'is-"to'say' itk'canhe By meansofthe-adjusting nuts-at the up- H caused to movetoandffro near the lip of the main nipper'rteryshort fibresiand-fur ther away for long fibres; f In my United'StatesPatent N-o;*1,369,532

it is shown how the shaft" 10 is'used to regu late the distance hetween fthe lipQof-th'e' nip-'- per plate P and the detaching roller D This distance is varied in racti ce accordin' to the lengthof -the fibresbe-ing combed and J the amount of'waste to hetaken out Gen erally the 'shorterthefibIe and "the' les's the waste thenearer'P rnust approach to D and I per by means-of thc lever9 sinniltaneousli and automatically produces a corresponding desireddistance from the; lip Orr-11 main nipperP by means of the nuts. 12, it follows that if the shaftlOhe; moved somewhat counter clockwise; the "pivot" 36 will be depressed and the lever L turnedon the stud 16 drawing theffeed'nipper F "further from the lipofthe main nipperP and vice versa,

change in the saine-directioir-of theflfeed j nipper within-themain nipperfl Forif'all the feednippers -F he set in-line andto a whilst the; same nio'vem-ent of-th'e shaft 10- nipper to thedetachingfrollerandsimulmain nipper' is *thus -ohta-ined.

In Fig; 3 means are shown whereby a feed taneously of the feed nipper within" the roller may be operated to feed a certain amountof material on the forward stro'ke and then withdraw a small amount on the return stroke. But as'in this case the axis of the roller remains fixed in relation to, the main nipper jaw P each roller must be adjusted separately in relation to the main nip per when any change is required. On the end of the feed roller is a toothed pinion P. A toothed sector S, whose centre is atN when in gear withthepinion P, is hinged on a stud 38 which is fixed on a convenient part or" the framing of the machine. Pivoted at 39 on the sector S is the link e0, connected as in Fig. 2 to the lever 42 which is operated by a suitably shaped cam M so that on the forward stroke of the nipper the sector S is droppec into gear with the pinion P to turn the roller forward and-left in gear until the main nipper'has receded some-distance from the detaching roller on the return stroke and turned the roller slightly backwards to witl draw a short length ofthe previously fed material again within the nipper before it doses. Although the drawings show] and the specification describes the invention applied to a combing machine constructed according to my United States Patent No. 1,369,532 it will be understood that such other imilar types, of combing machines. No claim is herein made to the specific form the invention illustrated inFigure 3, as same forms the subject matter of a divisions application Serial No. 613,203. 1

ters Patent is V 1. In a combingmachine of the Nasmith' type theuse of feed apparatus designed to eed mechanism maybe equally well applied iat I claim and desire to'secure'by Letdraw away from the top comb and into the nipper ashort length of the previously fed material as the nipper commences to recede from the'detaching roller as the detaching process is completed and before the nipper closes on the material to hold it whilst the I cylinder combs the projecting tuft.

2. In a comb'ng machine a feed nipper operating withinthe main nipper the said feed nipper comprising a lower jaw adapted '50 v to move backand forth within the main. mpper asitswmgs, aftop jaw moving back I and forth wi h the lower j aw and means for opening and closing thesaid upper jaw, the said means being such as-to close the upper jaw during the forward swing .ofthe main mpper to feed a givenamount of material forward andkeep it closed until a part of :the backward swing: has taken place and withdrawn again within themain nipper a part of the previously fed material.

3. In a combing machine a feed nipper' operating within the mainnipper, the said feed nippercomprising an upper and lower jaw adapted to moveback and forth within the main .ni'pper,- means for opening and closing i the position of each-feed'nipper in relation-to the jaws of the feed nipper-at the appropriate time, and means for varying of fiber tobe combed combined'with means whereby the position of 'the' feed nipper 7 within the main nipperis automaticallyand simultaneously altered whenever the position i of the main nipper in relation to the detach ing roller is changed. I

signature.

In testimony whereof I have affixjed'my I.

' Q WILLIAM NAASVMITHQV 

